I agree the Sony Grand Wega looks bad. I am not sure of the reliability of LCD projector bulbs, but $1 / hr to watch TV (for just the cost of the bulbs) seems rediculous. Usually The other thing is to watch the Tweeter sales people. They are usually setting you up for a extended warranty contract. A friend of mine got sold a bill of goods with his RPTV -- contract for 5 years for $329 for a yearly maintenance and service check. They came out and reset his user level convergence, and cleaned the projection screen. Yep, the TV still works... No ISF cal check, no mirror cleaning. Come to find out the services to do the cal & cleaning correctly cost $350 - $600 per visit.
The only reason I could see buying a LCD projector at this time is if for some reason you needed big screen computer graphics or played video games 100% of the time.